AY ARNAAN .
‘tod-10331-10127 \ | 2025 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992 |
eevee SECRET -

ll December 1995

MEMORANDUM FOR: Chief, Historical Review Group

FROM: | _ Fredrick C. Wickham, ar.
: DO, Focal Point for ARRB

SUBJECT: DO Position on Identification of ERTHYROID/3

i. The DO strongly opposes the release by the ARRB of the
phrase “a good KUBARK asset” that was pteviously withheld in
Attachment. The CIA asked the Nicaraguan Service to send
ERTHYROID/3 to Mexico City to help in the interrogation of
Alvarado. .Because this was during the Samoza regime, we have
admitted that we had a liaison relationship with the Nicaraguans
and we also have released the cryptonym ERTHYROID. ERTHYROID/3
became. well known to the Mexicans as the Nicaraguan interrogator
and, of course, was known by his own ‘service. The phrase “a good
KUBARK asset,” however, identifies him as a unilateral source of
the Managua Station unbeknownst to the Nicaraguan and Mexican
Services.

2. The DO often recruits: officers, such as ERTHYROID/3, who
are members of intelligence and police services with which it has
a liaison relationship. These assets provide us valuable
information without the knowledge of the service and in many
cases they provide information about the service itself and its
activities. .To reveal ERTHYROID/3'’s identity and his special ~
‘relationship with the CIA would not only personally endanger
ERTHYROID/3 but could cast suspicion’on other recruited officers
of other liaison services and compel them to reevaluate their

unilateral relationships with ws
: . LLM, MM &e 6,

Fredrick hy Wickham, Jr.

CL BY 0695930
REASON 1.5(c)
DECL Xl

DRV HUM 2-82

SECRET

13-00000
tow SECRET

.SUBJECT: DO Position on Identification of ERTHYROID/3

_ IMS/ESG/J. Goins/44447/11 Dec 95

Distribution:.
Orig & 1 - Addressee
1 - DO/IRO
1 - ESG/HCS
1 - C/ESG

2

SECRET

